Uniflite 36 Double Cabin
Built 1972–1984 by Uniflite Inc. (Bellingham, WA)
Is she right for you? Take the quiz
Own one? Start her custom manual
Looking at one? Sea-trial scorecard
About the Uniflite 36 Double Cabin
Researched from public sources for this model. Any individual boat may have been modified or repowered — confirm before relying on any figure.
- Built
- 1972–1984
- Builder
- Uniflite Inc. (Bellingham, WA)
- Length
- 36 ft
- Beam
- 12.33 ft
- Draft
- 2.67 ft
- Displacement
- 21,000 lb
- Hull
- fiberglass
- Hull / keel
- planing
- Propulsion
- inboard
- Bow thruster
- not fitted
- Stern thruster
- not fitted
Tank capacities — where the figures come from
-
Fuel unknown
“Fuel Tank Capacity (gal): 200 gallons” — search excerpt (1972), marinesource.com · “Twin 105 Gallon Fuel Tanks” — search excerpt (1979), boats-from-usa.com · “Fuel Tank Capacity (gal):300 gallons” — search excerpt (1976), marinesource.comListings give 200, 210 (two 105-gal tanks) and 300 gal; our earlier 200 rested on the HMY powerboat guide. The two-tank description is the most specific, but no builder figure settles it; 300 may be an extra-tank option or an error.
-
Water unknown
“100 Gallon Water Tank” — search excerpt (1979), boats-from-usa.com · “Water Tank Capacity (gal):200 ga[llons]” — search excerpt (1976), marinesource.comOne listing agrees with our earlier 100 gal; another (the one that says 300 gal of fuel) says 200. No builder figure was found.
-
Water heater unknown
“Water heater” — broker listing (1983), boatsdata.com · “Water Heater” — broker listing (1976), s3.amazonaws.comListings show water heaters of unstated size; no builder document or capacity found.
Tanks are often replaced or added on older boats — check the tank labels or a survey for yours.
Thrusters and steering — where this comes from
-
Bow thruster not fitted
“Standard Equipment list and numbered Optional Equipment price list (specification brochure) - no thruster” — brochure (c1981), boatbrochure.comThe builder's specification brochure lists standard equipment and priced options (hull, deck, propulsion and controls, electrical-mechanical, navigation); no thruster.
-
Stern thruster not fitted
“Standard and optional equipment lists - no thruster” — brochure (c1981), boatbrochure.com
-
Steering unknown
“193 Helm, lower station w/wipers & hydraulic steering $4,290 ... 197 Steering, hydraulic, single station $1,015” — brochure (c1981), boatbrochure.comHydraulic steering was a factory option (single station) in the brochure from about 1981, so the standard system was something else, probably cable as on the 28 Mega, but the standard list doesn't name it.
Thrusters and steering are often replaced — check the units on your boat before ordering parts.
Sources disagree on fuel tank, water tank — left blank rather than guessed.
Solid glass hull; 1984 '36 II' switched to a fully cored hull about 3,000 lb lighter. Optional fuel 300 gal. Chris-Craft reintroduced it as the 362 Catalina after buying Uniflite's molds. Uniflite 41 Yacht Fisherman is the cockpit version.
Engines fitted
-
Crusader 454 cid (7.4L) V8 — 350 hp, gas, twin
standard
HMY: standard 350 hp gas engines (454s) cruise about 18 kn. A 1984 boat is listed with twin freshwater-cooled 7.4L/454 Crusaders at 350 hp, so 454s also appear on the last model year.Sources: hmy.com · curtisstokes.net
-
Crusader 270 (gas V8) — 270 hp, gas, twin
standard
HMY: the lighter 1984 36 II used smaller 270 hp gas engines. A video listing for a 36 Mark II aft cabin names twin 270 hp Crusaders (make only from that listing).Sources: hmy.com · youtube.com
Boats of the same model can differ — check which engines yours actually has before ordering parts.
Generator
Most listings show an Onan generator but sizes differ: 7.5 kW diesel (1979 boat), 6.5 kW (1976 boat), an Onan 4500 (1977 boat) and Onan units of unstated size on others. No two boats share make and size, and no builder document says whether it was a factory option.
Known problems for this model
-
Hull and topside blisters hull
HMY notes many of these boats later developed blisters in both hull and topsides, consistent with Uniflite's fire-retardant resin problem.hmy.com · nautipedia.it
Engines & parts
Crusader 350 / 454 inboard gas V8 parts: good
Factory standard engine — you entered “Crusader 454 cid (7.4L) V8”
GM-based inboard engines; Crusader (now part of Pleasurecraft Marine Engine Co.) still publishes illustrated parts manuals and sells through distributors. Go2marine stocks Crusader manifolds, risers, raw water pumps and ignition parts; Osco and Barr make aftermarket manifolds, and new GM/Crusader base engines are sold by rebuilders.
Parts sources: Crusader Engines, Go2marine (Crusader parts), 1-800-RUNS-NEW (GM & Crusader base engines)
Common problems (1)
-
Clogged or failing manifolds/risers exhaust
Owners find individual risers running much hotter than the others (a sign of internal blockage) and debate replacing vs. flushing; Osco manifolds are often preferred as closest to OEM.marineengine.com · marineengine.com
Maker’s service schedule (14)
| Engine oil & filter change 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 50 hrs or 1 yr | “Change engine oil and filter — After 1st 25 Hrs / Every 50 Hours of Operation / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Fuel filters & water separator 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 50 hrs or 1 yr | “Fuel Filters - Service or replace — After 1st 25 Hrs / Every 50 Hours / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Raw-water pump impeller 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 1 yr | “Cooling System - Inspect/Replace raw water pump impeller — Every 100 Hours of Operation / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Drive belts inspect / replace 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 1 yr | “Drive Belt - Inspect condition and check tension — After 1st 25 Hrs / Every 100 Hours / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Spark plugs inspect / replace 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 1 yr | “Ignition System and Spark Plugs - Clean and inspect condition — After 1st 25 Hrs / Every 100 Hours / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Exhaust mixing elbow inspection 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 4 mo | “Exhaust System - Check condition and tightness of all hose clamps — After 1st 25 Hrs / Every 100 Hours(1) / Once Each Ye” — manufacturer (2013), crusaderengines.com |
| Coolant replacement & freeze-point test 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 5 yrs | “Fresh-water cooled models - Change coolant — Every five years” — manufacturer (2013), crusaderengines.com |
| Engine pencil zincs 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 1 mo | “Zinc Anodes - Heat exchanger and cooler - check condition — Every 30 days” — manufacturer (2013), crusaderengines.com |
| Transmission fluid change 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 1 yr | “Transmission and "V" Drive - Change fluid and clean strainer, if equipped — After 1st 25 Hrs (Hurth Only) / Once Each Ye” — manufacturer (2013), crusaderengines.com |
| Flame arrestor & crankcase ventilation - clean and inspect 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 1 yr | “Flame Arrestor and Crankcase Ventilation System - Clean and inspect — Every 100 Hours / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Engine alignment check 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 1 yr | “Engine Alignment - Check and adjust if necessary — After 1st 25 Hrs / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Inspect all hoses (and cooling hose clamps) 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 1 yr | “Hoses (all) - Inspect for cracks, swelling, weather checking or other signs of deterioration — Every 100 Hours / Once Ea” — manufacturer (2013), crusaderengines.com |
| Shift & throttle cable linkage - inspect and lubricate 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 100 hrs or 4 mo | “Shift and Throttle Cable Linkage - Inspect and lubricate — Every 100 Hours(1) / Once Each Year” — manufacturer (2013), crusaderengines.com |
| Electrical system - check connections and wiring 2013 MPI 5.0L/5.7L (350 CID)/6.0L | 50 hrs or 2 mo | “Electrical System (complete) - Check for loose or dirty connections and damaged wiring — Every 50 Hours(2) / Once Each Y” — manufacturer (2013), crusaderengines.com |
Service part numbers (18)
| Oil filter remote-mounted oil filter (MP7.4L and 2013 5.0/5.7/6.0L MPI) |
Crusader 22679 | “Oil Filter 22679 (MAINTENANCE ITEM PART NUMBERS)” — manufacturer, crusaderengines.com |
| Fuel filter MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008 |
Crusader 47038 | “Fuel Filter 47038 (MAINTENANCE ITEM PART NUMBERS)” — manufacturer, crusaderengines.com |
| Fuel filter 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13 |
Crusader RP080026 | “Fuel Control Cell (FCC) Fuel Filter Element RP080026” — manufacturer, crusaderengines.com |
| Fuel pre-filter / separator MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: engine-mounted Racor water-separating filter 47046 |
Crusader 47047 | “25 47047 Element, Racor fuel filter (Not Shown) 1” — manufacturer, crusaderengines.com |
| Fuel pre-filter / separator 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13: primary fuel filter |
Crusader R080033 | “Primary Fuel Filter Element R080033” — manufacturer, crusaderengines.com |
| Raw-water impeller MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008 (raw water pump RA057031) |
Crusader RP061017 Replaces R061017 |
“Replaces Crusader R061017 (Impeller Kit with Gasket & O-Ring | Crusader RP061017)” — dealer, marinepartssource.com · “Replaces Crusader R061017 (Impeller Kit with Gasket & O-Ring | Crusader RP061017)” — dealer, marinesuppliesdepot.com |
| Raw-water impeller 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13 |
Crusader RP061022 | “Impeller , Raw Water Pump (1) RP061022 (ON-BOARD PARTS KIT 5.7L)” — manufacturer, crusaderengines.com |
| Raw-water pump kit MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008 (raw water pump RA057031) |
Crusader 40064 | “40064 Overhaul Kit, Major (includes items 2, 3, 11, 14 and 15)” — manufacturer, crusaderengines.com |
| Drive belt MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: alternator drive |
Crusader 98210 | “Alternator Drive Belt 98210” — manufacturer, crusaderengines.com |
| Drive belt MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: raw water pump drive |
Crusader 10258 | “Raw Water Pump Drive Belt 10258” — manufacturer, crusaderengines.com |
| Drive belt 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13, left-hand (LH) rotation: serpentine |
Crusader R066028 | “Belt , Serpentine (1) R066028 (ON-BOARD PARTS KIT 5.7L (LH))” — manufacturer, crusaderengines.com |
| Drive belt 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13, right-hand (RH) rotation: serpentine |
Crusader R066029A | “Belt , Serpentine (1) R066029A (ON-BOARD PARTS KIT 5.7L (RH))” — manufacturer, crusaderengines.com |
| Spark plug MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: platinum plug |
Crusader 49078 × 8 | “Spark Plugs (platinum) 49078” — manufacturer, crusaderengines.com |
| Spark plug 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13: platinum plug set |
Crusader RP030010 | “Spark Plug , Set, (Platinum) (1) RP030010 (ON-BOARD PARTS KIT 5.7L)” — manufacturer, crusaderengines.com |
| Thermostat MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: raw-water (standard) cooling, 143 F |
Crusader R026002E | “6 R026002E Thermostat (143-degree) 1 (Raw Water Cooling Components - Figure 18)” — manufacturer, crusaderengines.com |
| Thermostat MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: fresh-water (closed) cooling kit, 170 F |
Crusader 98203 | “5 98203 Thermostat (170-degree) 1 (Fresh Water Cooling Components 1)” — manufacturer, crusaderengines.com |
| Zinc / anode MP7.4L / MP454 XLi (454 MPI) - illustrated parts manual L510008: oil cooler / transmission cooler / heat exchanger |
Crusader R168005 | “24 R168005 Zinc, sacrificial 1 (Raw Water Cooling Components - Figure 18)” — manufacturer, crusaderengines.com |
| On-board spare parts kit (belt, cap, rotor, fuses, relays, plugs, impeller, fuel filters) 5.7L (350) MPI with FCC fuel system, 2007 on - 2013 owner manual L510001-13, LH rotation |
Crusader RK173089D-07 | “ON-BOARD PARTS KIT 5.7L (LH) 2007 TO PRESENT, FCC FUEL SYSTEM RK173089D-07” — manufacturer, crusaderengines.com |
From the engine maker’s parts lists, or two independent parts dealers. Numbers change with serial number and get superseded — check yours before ordering.
Model sources (7)
hmy.com · nautipedia.it · curtisstokes.net · youtube.com · boatsdata.com · s3.amazonaws.com · boatbrochure.com
Other Uniflite models
- Uniflite 28 Mega 1977–1984
- Uniflite 34 Sport Sedan / Tournament Fisherman 1974–1984
- Uniflite 42 Double Cabin 1971–1984
Researched from public sources. Spotted an error? The sources are listed above — tell us what they got wrong.